Vulnerability Description
crypto/pcrypt.c in the Linux kernel before 4.14.13 mishandles freeing instances, allowing a local user able to access the AF_ALG-based AEAD interface (CONFIG_CRYPTO_USER_API_AEAD) and pcrypt (CONFIG_CRYPTO_PCRYPT) to cause a denial of service (kfree of an incorrect pointer) or possibly have unspecified other impact by executing a crafted sequence of system calls.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 4.2, < 4.4.111 |
| Canonical | Ubuntu Linux | 14.04 |
Related Weaknesses (CWE)
References
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d76c68Issue TrackingPatchThird Party Advisory
- http://www.securityfocus.com/bid/102813Third Party AdvisoryVDB Entry
- https://access.redhat.com/errata/RHSA-2018:2948Third Party Advisory
- https://github.com/torvalds/linux/commit/d76c68109f37cb85b243a1cf0f40313afd2bae6Patch
- https://usn.ubuntu.com/3619-1/Third Party Advisory
- https://usn.ubuntu.com/3619-2/Third Party Advisory
- https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.13Issue TrackingRelease NotesVendor Advisory
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d76c68Issue TrackingPatchThird Party Advisory
- http://www.securityfocus.com/bid/102813Third Party AdvisoryVDB Entry
- https://access.redhat.com/errata/RHSA-2018:2948Third Party Advisory
- https://github.com/torvalds/linux/commit/d76c68109f37cb85b243a1cf0f40313afd2bae6Patch
- https://usn.ubuntu.com/3619-1/Third Party Advisory
- https://usn.ubuntu.com/3619-2/Third Party Advisory
- https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.13Issue TrackingRelease NotesVendor Advisory
FAQ
What is CVE-2017-18075?
CVE-2017-18075 is a vulnerability with a CVSS score of 7.8 (HIGH). crypto/pcrypt.c in the Linux kernel before 4.14.13 mishandles freeing instances, allowing a local user able to access the AF_ALG-based AEAD interface (CONFIG_CRYPTO_USER_API_AEAD) and pcrypt (CONFIG_C...
How severe is CVE-2017-18075?
CVE-2017-18075 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2017-18075?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel, Canonical Ubuntu Linux.